Title : Fruit Trees Nutritional Summary
Visit Count : 1896 Time(s)
Upload Date : 7/17/2016 - 3 Year(s) ago
Category : agricultural technical notes
Sunday, July 17, 2016
Visit Count : 1896 Time(s)
Upload Date : 7/17/2016 - 3 Year(s) ago
Category : agricultural technical notes
SECONDARY NUTRIENTS (MICRONUTRIENTS)
The secondary nutrients are calcium, magnesium, and sulphur. For most crops, these three are needed in lesser amounts that the primary nutrients. They are growing in importance in crop fertilization programs due to more stringent clean air standards and efforts to improve the environment.
NITROGEN
• Necessary for formation of amino acids, the building blocks of protein
• Essential for plant cell division, vital for plant growth
• Directly involved in photosynthesis
• Necessary component of vitamins
• Aids in production and use of carbohydrates
• Affects energy reactions in the plant

PHOSPHORUS
• Involved in photosynthesis, respiration, energy storage and transfer, cell division, and enlargement
• Promotes early root formation and growth
• Improves quality of fruits, vegetables, and grains
• Vital to seed formation
• Helps plants survive harsh winter conditions
• Increases water-use efficiency
• Hastens maturity

POTASSIUM
• Carbohydrate metabolism and the break down and translocation of starches
• Increases photosynthesis
• Increases water-use efficiency
• Essential to protein synthesis
• Important in fruit formation
• Activates enzymes and controls their reaction rates
• Improves quality of seeds and fruit
• Improves winter hardiness
• Increases disease resistance

SECONDARY NUTRIENTS (MICRONUTRIENTS)
The secondary nutrients are calcium, magnesium, and sulphur. For most crops, these three are needed in lesser amounts that the primary nutrients. They are growing in importance in crop fertilization programs due to more stringent clean air standards and efforts to improve the environment.
CALCIUM
• Utilized for Continuous cell division and formation
• Involved in nitrogen metabolism
• Reduces plant respiration
• Aids translocation of photosynthesis from leaves to fruiting organs
• Increases fruit set
• Essential for nut development in peanuts
• Stimulates microbial activity
MAGNESIUM
• Key element of chlorophyll production
• Improves utilization and mobility of phosphorus
• Activator and component of many plant enzymes
• Directly related to grass tetany
• Increases iron utilization in plants
• Influences earliness and uniformity of maturity

COPPER
• Catalyzes several plant processes
• Major function in photosynthesis
• Major function in reproductive stages
• Indirect role in chlorophyll production
• Increases sugar content
• Intensifies color
• Improves flavor of fruits and vegetables

IRON
• Promotes formation of chlorophyll
• Acts as an oxygen carrier
• Reactions involving cell division and growth

MAGANESE
• Functions as a part of certain enzyme systems
• Aids in chlorophyll synthesis
• Increases the availability of P and CA

ZINC
• Aids plant growth hormones and enzyme system
• Necessary for chlorophyll production
• Necessary for carbohydrate formation
• Necessary for starch formation
• Aids in seed formation

Animal manure
is a complete, natural fertilizer. It is lower in nutrients than some other fertilizer, having a ratio of approximately 2-3-1.5 for poultry, 1-0.5-1 for sheep, and 0.5-0.2-0.5 for cattle and horses. The nutrient content of manure varies depending on what the animal ate and what type of animal the manure comes from. Poultry and sheep manure has about twice as much nitrogen content as horse or cow manure. The amount of manure necessary for your tree will depend on the age and size of the tree. Fertilize trees in early spring so they can use the nutrients during active growth.

When to fertilize fruit trees?
Right before bud break is the perfect time to fertilize your fruit trees. If you miss the moment and the trees have begun to bloom, you can still fertilize until June. Don’t fertilize in late summer or fall, though, because the new growth put on by the tree can be damaged by frost.The earliest time to fertilize? One month prior to spring growth.
How to apply fertilizer to fruit trees?
There are two ways to apply fertilizer to your trees. The easiest way is just to spread the fertilizer on the ground, rake it in, and then water. Don’t start fertilizing next to the trunk. Start a foot from the trunk and spread fertilizer evenly all the way out to the drip line. The drip line is at the perimeter of the tree’s furthest reaching branches. Digging a series of small holes is another method of applying fertilizer. It is a bit more work, but it ensures the fertilizer is getting to the tree roots. To make the digging job easy you can use an auger attachment with a cordless drill. Dig the holes six inches down and 12”-18” apart. Start drilling the holes a foot outward from the trunk and continue on to the drip line. Take the fertilizer you’ve measured out according to the recommended rates and sprinkle a little in each hole until it is used up. This is great for making sure less water soluble nutrients like phosphorus or beneficial mychorhizae in the fertilizer make it to the tree roots. Once you have finished fertilizing, spread an inch of compost over the top and water well.

http://www.groworganic.com/organic-gardening/articles/when-and-how-to-fertilize-your-fruit-trees
http://eldoradochemical.com/fertiliz1.htm
http://homeguides.sfgate.com/fertilize-trees-manure-43355.html
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